Climatic conditions are delicately adjusted to the composition of the Earth’s atmosphere. If there were a change in the atmosphere--for example, in the relative proportions of atmosphere gases--the climate would probably change also. A slight increase in water vapor, for instance, would increase the hem-retaining capacity of the atmosphere and would lead to a rise in global temperatures. In contrast, a large increase in water vapor would increase the thickness and extent of the cloud layer, reducing the mount of solar energy reaching the Earth’ surface.
The level of carbon dioxide, CO2 in the atmosphere has important effect on climatic change. Most of the Earth’s incoming energy is short-wavelength radiation, which tends to pass through atmospheric CO2 easily. The Earth, however, reradiates much of the received energy as a long-wavelength radiation, Which CO2 absorbs and then remits toward the Earth. This phenomenon, know
A. Why are projections of the effects of changes in water vapor levels on the climate so inaccurate
B. What are the steps in the process that takes place as CO2 absorbs long-wavelength radiation
C. How might our understanding of the greenhouse effect be improved if the burning of fossil fuels were decreased
D. What might cause a series of regular increases and decreases in the amount of CO2 in the atmosphere
Social control refers to social processes, planned or unplanned, by which people are taught, persuaded, or forced to conform to norms. In every society, some punishments or negative sanctions are established for deviant behavior. Without deviant behavior there would not be need for social control and without social control there would not be a way of recognizing the boundary between the acceptable and the unacceptable.
Social control may be either formal or informal. Informal mechanisms include expressions of disapproval by significant others and withholding of positive rewards for disapproved behavior. Most people internalize norms in the course of socialization. This is any group’s most powerful protection against deviance, in that the individual’s own conscience operates as an agent of social control. When informal sanctions fail, formal agents of social control may be called upon. In contemporary society, such formal agents and agencies include psychiatry
A. planned systems
B. controlled norms
C. recognized boundary
D. established sanctions
A common assumption about the private sector in education is that it caters only to the elite. (1) , recent research points in the opposite direction. If we want to help some of most (2) groups in society, then encouraging deeper private sector (3) is likely to be the best way forward.
Several developments are (4) in India, all of which involve the private education sector meeting the needs of the poor in distinct ways. But India is not (5) in this respect—— similar phenomena are happening all over the developing world.
As a point of (6) , how do government schools serve the poor Usefully, the government sponsored Public Report on Basic Education in India from 1999 paints a very (7) picture of the" (8) "of the government schools for the poor. When researchers (9) unannounced on their random (10) of schools, only 5% had any "teaching activity" going on. Alarmingly, the team noted that the (11) of teaching standards was not to do (12)
A. desolate
B. bleak
C. ingenious
D. delicate
主变流器控制装置
辅助变流器控制装置
电源充电控制装置
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